NoClassDefFoundError: akka/japi/function/Function using Akka Streams 1.0

[sfos...@twilio.com]

The subject pretty much says it all.  I have the following in my pom:

<!-- akka -->
<dependency>
    <groupId>com.typesafe.akka</groupId>
    <artifactId>akka-actor_${scala.binary.version}</artifactId>
    <version>2.3.9</version>
</dependency>

<dependency>
    <groupId>com.typesafe.akka</groupId>
    <artifactId>akka-slf4j_${scala.binary.version}</artifactId>
    <version>2.3.12</version>
</dependency>

<dependency>
    <groupId>com.typesafe.akka</groupId>
    <artifactId>akka-stream-experimental_${scala.binary.version}</artifactId>
    <version>1.0</version>
</dependency>

<dependency>
    <groupId>com.typesafe.akka</groupId>
    <artifactId>akka-http-experimental_${scala.binary.version}</artifactId>
    <version>1.0</version>
</dependency>

<dependency>
    <groupId>com.typesafe.akka</groupId>
    <artifactId>akka-http-core-experimental_${scala.binary.version}</artifactId>
    <version>1.0</version>
</dependency>

<dependency>
    <groupId>com.typesafe.akka</groupId>
    <artifactId>akka-http-spray-json-experimental_${scala.binary.version}</artifactId>
    <version>1.0</version>
</dependency>

I have a lot of dependencies, but I'm pretty sure I've excluded things such that no other version of akka is being brought in (per mvn dependency:tree).

java.lang.NoClassDefFoundError: akka/japi/function/Function

at java.net.URLClassLoader$1.run(URLClassLoader.java:372)

at java.net.URLClassLoader$1.run(URLClassLoader.java:361)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:360)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClass(ClassLoader.java:760)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:455)

at java.net.URLClassLoader.access$100(URLClassLoader.java:73)

at java.net.URLClassLoader$1.run(URLClassLoader.java:367)

at java.net.URLClassLoader$1.run(URLClassLoader.java:361)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:360)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at akka.stream.Supervision$.<init>(Supervision.scala:58)

at akka.stream.Supervision$.<clinit>(Supervision.scala)

at akka.stream.ActorMaterializerSettings$.apply(ActorMaterializer.scala:228)

at akka.stream.ActorMaterializerSettings$.apply(ActorMaterializer.scala:215)

at akka.stream.ActorMaterializer$$anonfun$1.apply(ActorMaterializer.scala:37)

at akka.stream.ActorMaterializer$$anonfun$1.apply(ActorMaterializer.scala:37)

at scala.Option.getOrElse(Option.scala:121)

at akka.stream.ActorMaterializer$.apply(ActorMaterializer.scala:37)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite$$anon$1.<init>(FlowFactoryTestSuite.scala:75)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite.withFlowFactory(FlowFactoryTestSuite.scala:73)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite$$anonfun$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(FlowFactoryTestSuite.scala:122)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite$$anonfun$1$$anonfun$apply$mcV$sp$1.apply(FlowFactoryTestSuite.scala:109)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite$$anonfun$1$$anonfun$apply$mcV$sp$1.apply(FlowFactoryTestSuite.scala:109)

at org.scalatest.Transformer$$anonfun$apply$1.apply$mcV$sp(Transformer.scala:22)

at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)

at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)

at org.scalatest.Transformer.apply(Transformer.scala:22)

at org.scalatest.Transformer.apply(Transformer.scala:20)

at org.scalatest.FunSpecLike$$anon$1.apply(FunSpecLike.scala:422)

at org.scalatest.Suite$class.withFixture(Suite.scala:1122)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite.withFixture(FlowFactoryTestSuite.scala:39)

at org.scalatest.FunSpecLike$class.invokeWithFixture$1(FunSpecLike.scala:419)

at org.scalatest.FunSpecLike$$anonfun$runTest$1.apply(FunSpecLike.scala:431)

at org.scalatest.FunSpecLike$$anonfun$runTest$1.apply(FunSpecLike.scala:431)

at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306)

at org.scalatest.FunSpecLike$class.runTest(FunSpecLike.scala:431)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite.runTest(FlowFactoryTestSuite.scala:39)

at org.scalatest.FunSpecLike$$anonfun$runTests$1.apply(FunSpecLike.scala:464)

at org.scalatest.FunSpecLike$$anonfun$runTests$1.apply(FunSpecLike.scala:464)

at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:413)

at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)

at scala.collection.immutable.List.foreach(List.scala:381)

at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)

at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:390)

at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:427)

at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)

at scala.collection.immutable.List.foreach(List.scala:381)

at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)

at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:396)

at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:483)

at org.scalatest.FunSpecLike$class.runTests(FunSpecLike.scala:464)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite.runTests(FlowFactoryTestSuite.scala:39)

at org.scalatest.Suite$class.run(Suite.scala:1424)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite.org$scalatest$FunSpecLike$$super$run(FlowFactoryTestSuite.scala:39)

at org.scalatest.FunSpecLike$$anonfun$run$1.apply(FunSpecLike.scala:468)

at org.scalatest.FunSpecLike$$anonfun$run$1.apply(FunSpecLike.scala:468)

at org.scalatest.SuperEngine.runImpl(Engine.scala:545)

at org.scalatest.FunSpecLike$class.run(FunSpecLike.scala:468)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite.org$scalatest$BeforeAndAfterAll$$super$run(FlowFactoryTestSuite.scala:39)

at org.scalatest.BeforeAndAfterAll$class.liftedTree1$1(BeforeAndAfterAll.scala:257)

at org.scalatest.BeforeAndAfterAll$class.run(BeforeAndAfterAll.scala:256)

at com.twilio.messaging.pricingevent.app.FlowFactoryTestSuite.run(FlowFactoryTestSuite.scala:39)

at org.scalatest.junit.JUnitRunner.run(JUnitRunner.scala:99)

at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)

at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)

at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)

Any help much appreciated.  Thanks!

[Konrad Malawski]

Seems you're mixing up dependencies.

Please don't use 2.3.9, use 2.3.12 (see your akka-actor dependency).

-- 

Cheers,

Konrad 'ktoso’ Malawski
Akka @ Typesafe

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[sfos...@twilio.com]

Brilliant, thank you!